Finding the Fourth Proportional to 1,513,172,527.89, 2,269,678,078.98 and 407,759,636.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513,172,527.89 : 2,269,678,078.98 = 407,759,636.96 : x
2. Step 2: Convert to fraction form
   1,513,172,527.89/2,269,678,078.98 = 407,759,636.96/x
3. Step 3: Cross multiply
   1,513,172,527.89x = 2,269,678,078.98 × 407,759,636.96
4. Step 4: Simplify right side
   1,513,172,527.89x = 925,483,109,506,629,120
5. Step 5: Solve for x
   x = 925,483,109,506,629,120/1,513,172,527.89
6. Step 6: Final answer
   x = 611,617,705.48